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82393808 = 247735659
BaseRepresentation
bin1001110100100…
…11101011010000
312202001001001112
410322103223100
5132043100213
612101552452
72020223120
oct472235320
9182031045
1082393808
1142566762
1223715728
13140bab43
14ad2ac80
157377ea8
hex4e93ad0

82393808 has 20 divisors (see below), whose sum is σ = 182443680. Its totient is φ = 35311584.

The previous prime is 82393789. The next prime is 82393811. The reversal of 82393808 is 80839328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367718 + ... + 367941.

It is an arithmetic number, because the mean of its divisors is an integer number (9122184).

Almost surely, 282393808 is an apocalyptic number.

It is an amenable number.

82393808 is an abundant number, since it is smaller than the sum of its proper divisors (100049872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82393808 is a wasteful number, since it uses less digits than its factorization.

82393808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735674 (or 735668 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 82393808 is about 9077.1035027700. The cubic root of 82393808 is about 435.1425225509.

The spelling of 82393808 in words is "eighty-two million, three hundred ninety-three thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 735659 1471318 2942636 5149613 5885272 10299226 11770544 20598452 41196904 82393808